Improvement in shoe-shaping machines



K S. ROSS JI.. `2 Sheets- Sheet 1.

' Shoe-Shaping Machine.

- No. 2II,42 7. Patented lan.1 4, 1879.

1fas- M ya S. JI. 2Sheetsf-Shggfl 2', Shoe-Shaping Machine, NO..211,427.

Patented 1an. 14,1879.

\= l am z FE: mi l Y y adjustable st UNITED-STATES PATENT OFFICE.

SIMON ROSS, JR.,.OF NEWPORT, KENTUCKY.

IMPROVEMENT IN SHOE-SHAPING MACHINES."

Specification forming part of Letters Patent No. 211,427, dated January14, 1879 application filed November 2, 1878.

To all whom it may concern:

Be it known that I, SIMON Ross, Jr., of

Newport, in the county of Campbell and State of Kentucky, have inventedcertainvnew and useful Improvements in Shoe Shaping AMachines, of whichthe following is a speciiication: My invention relates to an improvedboot and shoe sole shaping machine, adapted to be driven by eithersteam, compressed air, or hydraulic power.

The object of my invention is to furnish a cheap, durable, andaccurately-working machine, which'rapidly performs its work, and savingcost or" labor employed to run the machine. p The first part of myinvention consists of a piston, on which is mounted a last, which, inoperation, will strike against a former with either the last or formerbeing mounted on its bed in such a manner that it will rock, and thefaces of the last and former will assume parallel planes with respect toeach other when the force of the piston is exerted thereon.

The second part of my invention consists of mounting the two lasts on acarriage, which is attached to the cylinder-head in such a manner thatit can be reciprocated by a crank to bring the two lasts alternatelyinto operation.

The third feature of my invention consists in mounting the fixed formeron a slideway, and so connecting it with the last-carriage that it canbe made to reciprocate in unison therewith, so that a right and leftlast and former can be alternately brought into use at the will of theoperator.

Another feature of my invention consists of lops for regulating themovements 'of the last and former carriages.

Another feature of my invention consists of a regulating-valve, which isadjusted to control the pressure operating the piston, said valve beinglocated between a cut-ott' valve, which admits the pressure to thepiston, and the device employed to produce the power or huid pressure.

Another feature of my invention consists in providing a leather packingfor the piston when water or compressed air is used as a motor 5 thefeature of myinvention being the piercing of a series of holes on theface of the piston near its periphery, which holes extend inwardly andthen laterally outwardthrough the periphery of the piston, thus formingpassages for the flow of the pressure-producing fluid, which impartspressure to the inner face ofthe packing, forcing it againstthe cylinderand preventing leakage.

Other features of my invention will be fully explained in the followingdescription .of the drawings.

Referring tothe drawings, Figure l is a perspective view of themachineembodying my invention. Fig. 2 is a side view of the top forwardpart of the machine; Fig. 3, a vertical section on line a" x, Fig. 2.Fig. t is a broken section on line y y, Fig. l. Fig. 5 is a verticalsection on line w w, Fig. 4. Fig. 6 is partly in perspective and partlyin plan, showing the arrangement of cylinder, piston, and valves. Fig. 7is a section on line zz, Fig. 6. Fig. S is a plan of piston -head andpacking. Fig. 9 is a plan, showing the segmental gear and its relationto the last-carriage; and Fig. 10 is a section on line t lv, Fig. 6.

A represents the base of the machine; B, a column or frame, on which aremounted the operative parts. O represents a cylinder. D represents acylindrical piston; D, the piston'- head; E, the packing, and d acylindrical cap or platform, rigidly fastened to the piston D', withflanges encompassing the cylinder O, which flanges are of 'a length tocover the cylinder when the piston is fully elevated. F represents acarriage, mounted on cap d, to which it is attached by means of gibs cc, which are gained to it into groove t' of the carriage; h, a holepierced inthe carriage to receive lasts G G', which are tenoned to littherein. H H represent formers, which are attached to slide I by adovetail, as shown in Fig. l. K K represent gibs, which sustain slide Iin connection with the rocking bedpiece I, which is securedby eyebolt Qand pivot l? to the overhanging part of the frame A. On these gibs aretongues, which iit into corresponding grooves out in them for the partI, and form ways for it to slide upon.

vL represents a rack-bar, fastened to the under side of carriage F. Theteeth of rack L engage with pinion L', which is mounted ona shaft andrevolved by means of crank M.

Z represents a set-screw, which acts as a stop for carriage F, thetravel of which is regulated by the set-screw. M' represents a shaft,journaled on column B; n, a segmental gear, rigidly attached to shaftM'; N, a segmental arm, journaled on stud S', which is shown journaledon shaft M'. Segment 'n engages with segment u', and the arm N isattached to slide I by a pivot passing through a slot, as shown in Fig.9.

o represents a tripping-arm, rigidly secured to shaft M'. o" o' aredogs, which engage with tripping -lever o as the carriage F is movedback and forth laterally on its ways.

The dogs o" 0' are secured to carriage F by screws, and the holes areslotted to allow of their being adjusted to regulate the oscillation ofshaft M', and thereby adjusting the travel of slide I. l

Gr G' are right and left lasts, andH H' right and left formers, againstwhich lasts Gr G' are forced by the stroke of the piston D'. It isdesirable to have the lasts Gr G', respectively, above the center ofpiston D'.

When the stroke is made, and when right and left shoes or boots are tobe shaped, each last with its former should be brought alternately intooperation. This is accomplished as follows: The machine being set as inFig. l, with last Gr vertically under former H, by turning crank M tothe right, carriage F is also moved to the right by means of pinion L'and rack-bar L, and the last Gr is brought to the center ofthepiston.This movement causes dog o" to strike tripping-arm o, which turns shaftM' and segmental gear n a', when slotted arm N moves slide I to theleft, bringing former H vertically over last G. By adjusting the dogs o"and o' and set-screws l, the position of the lasts Gr G' and formers HH' can be regula-ted so as to be brought into eX- act vertical planesVfor making the stroke.

I' represents a bed-piece, to which slide I is attached; Q, an eyebolt,and l? a pivot for securing the bed-piece to the frame A'. Instead ofthe eyebolt, a ball-and-socket joint may be employed; but this will notbe ordinarily necessary. This joint enables the formers H H' to rock andadjust themselves to the faces of the last when the stroke is made,thereby bringing the strain vertically on the last. The machine isadapted to be driven by any kind of fluid-pressure. It is shown,however, packed for using water or compressed air, the latter beingpreferable.

Itis necessary to regulate the pressure for different kinds of work, andto increase and decrease the same at pleasure. To enable this to bepractically and readily done when steam, hydraulic, or hydrostatic forceis employed, I have invented the following arrangement, which willenable the operator to have perfect control of the machine.

` justed on the graduated lever C' normal position, ready for a secondstroke, ,the iiuid in cylinder C will run out through the valve-chamberinto pipe l-represents :iSupply-pipe; @aout-off valve, which is fullydescribed in my patent of May 16, 1876. It' represents a branch of pipeleading from R to a weighted valve, u, and from hence to waste-pipe W.

To regulate the pressure, weight B' is adto the point indicating therequired pressure. A greater ,pressure of the fluid than that indicatedby the position of the weight will raise'valve u, which will permit theescape through pipes S and W of a portion of the medium of pressure.

The piston D' is, of course, arrested in its stroke by the resistance ofthe last against the former, and as long as valve c is open it will beheld under pressure. As soon as valve c is lowered, the piston D' willreturn to it? S, through T and escape W.

When a hydraulic force-pump is employed to supply the fluid-pressure,the escape W may lead back to the reservoir which supplies thc pump, andthus may be used over continually.

E represents a leather packing, secured between the pistn andpiston-head by screws, as shown in Fig. 5. P' represents a series ofholes pierced in the face of the cylinder near its periphery, andextended laterally through to the leather. The pressure acting on theface of the piston will enter through holes, and force the leatheragainst the sides of the piston, and prevent all leakage between pistonand cylinder. E' represents a treadle, pivoted on base of frame A; fu',a connectingrod, pivoted to the stem of valve-rod c by a ball-and-socketjoint, t. The arrangement of these devices is such that the operator canwith his foot move the cut-ofi` valve 'u up and down and control. thepiston movement at will.

When straight lasts are employed, but one former, H, is necessary. Insuch a case segmental arm N is detached from slide I, which is adjustedto be stationary over the center of the piston; and a short platformwith a single former may be substituted for the slide I, if desired.

What I claim is- 1. The bed-piece I', pivoted to frame A', so as toallow the former to rock and adjust itself to the face of the lasts,substantially as set forth.

2. The combination, with the piston D', adapted for operation byfluid-pressure, of the carriage F, mounted on said piston and providedwith thel lasts, and a suitable former arranged above said lasts, thecarriage being adapted to reciprocate to bring the lasts alternatelyunder the former, substantially as and for the purpose set forth.

3. In combination with the reciprocating carriage F, the reciprocatingslide I and the mechanism for automatically operating the carriage andslide in unison, substantially as set forth. f

4. In combination with carriage F, the adjustable dogs o o"for adjustingthe throw of slide I, substantially as set forth.

5. The combination of a suitable former, the

. carriage F, carrying the lasts and provided p with the adjustablescrews l, for limiting the travel of said carriage, and the cap orplatform d, upon which the carriage is supported, substantially asdescribed.

G. The combination, with the cylinder and its piston, ofthe pipe R,cut-off valve o, branch pipe R', regulating-valve u, and pipes S,substantially as described.

7. In combination with the regulating-valve u, the pipe S, arranged torelieve the piston ofexcessive pressure, substantially as herein setforth.

8. The piston D', having a series of holes, P, to supply pressurebetween the periphery of the piston-head and the packing E,substantially as set forth.

In testimony whereof` I have hereunto set my hand.

sIMoN Ross, JR.

